Video standards converter
- Video standards converter
Video standards converter is a video device that converts NTSC to PAL and/or PAL to NTSC.
The PAL TV signals may be transcoded to or from SECAM.
Video standards converter is used so TV shows can be viewed in nations with different video standards.
Main Page see Television standards conversion
History
Converters are needed because NTSC uses 30 frames (pictures) per second and PAL uses 25 frames per second. First video standards converters were Analog. That is a special Professional video camera that used a Video camera tube would be pointed at a Cathode ray tube video monitor. Both the Camera and the monitor could be switched to either NTSC or PAL, to convert both ways. Robert Bosch GmbH's Fernseh Division made a large three rack analog video standards converter. These were the high end converters of the 1960s and 1970s. Image Transform in Universal City, CA used the Fernseh converter and in the 1980s made their own a custom digital converter. This was also a larger 3 rack device. As digital memory size became larger in smaller packages converters became the size of a microwave oven. Today one can buy a very small converter for home use!
ee also
*Scan conversion
*NTSC
*PAL
*SECAM
*Television standards conversion
Ext. Link
* [http://www.ee.surrey.ac.uk/Contrib/WorldTV/conversion.html - Web site]
* [http://www.paradiso-design.net/videostandards_en.html - Video standards ]
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